NXP Semiconductors QorIQ LX2160A - 3.13 Alarm (ALARM)

3.26 Power Event Trace (PWR_EVENT)
Address
Register Offset
PWR_EVENT 022h
Function
The PWR_EVENT register records which events caused power-on or -off actions.
Diagram
Bits
7 6 5 4 3 2 1 0
R PPEVENT PEVENT
W
NONE 0000 0000
Fields
Field Function
7-4
PPEVENT
Previous Power Event:
This field contains the value previously stored in the PEVENT field.
3-0
PEVENT
Power Event:
The field contains a code indicating the cause of the most recent power state change, one of the following
codes:
0000= No history (never powered up).
0001= Forced power-off (fault, temp, etc).
0010= Automatic power-up (SW4[2] is set).
0011= PWR_SW switch used to power on.
0110= ATX power-loss detected.
0111= PWR_SW switch used to power off.
1010= Thermal fault forced power off.
1111= Unknown
3.27 Power Status 0 (PWR_MSTAT)
Address
Register Offset
PWR_MSTAT 024h
NXP Semiconductors
Qixis Programming Model
QorIQ LX2160A Reference Design Board Reference Manual, Rev. 4, 07/2020
Reference Manual 77 / 116